Herpes zoster is not a precursor to cancer and is not necessarily related to cancer. Herpes zoster is an acute infectious skin disease caused by varicella zoster virus, which is a benign disease. Although it is accompanied by localized pain and the duration of the disease is relatively long, it can be cured after active treatment, and has no relationship with cancer, so patients do not need to worry too much. Herpes zoster is more likely to be infected and develop when the body’s immune system is low, and cancer patients’ immune system is relatively poor, so cancer patients are prone to herpes zoster, which is one of the reasons why herpes zoster is considered as a precursor of cancer, but in fact there is no direct link between herpes zoster and cancer. When patients appear shingles should be timely to the hospital for examination and diagnosis, clear cause of the disease in the doctor’s guidance, combined with personal situation for targeted treatment, to avoid misunderstanding the condition leads to the continued development of the disease, resulting in serious effects.